CoinPayments Payment Integration in 1 day
Budget: $30 – $250 USD
Work must be done through Anydesk. I need my custom-built PHP platform to start accepting cryptocurrency payments through the CoinPayments API. The goal is straightforward: when a customer checks out, they should be able to pay in crypto and have the order status update automatically once CoinPayments confirms the transaction.
You’ll be working with a clean PHP/MySQL codebase (no framework overhead). I already hold the CoinPayments merchant keys and have a sandbox account ready, so you can jump straight into coding.
Key points
• Core requirement: implement the CoinPayments API so payments flow smoothly from the front end to confirmed status in our database.
• Cryptos: at minimum Bitcoin, with the flexibility to add Ethereum and Litecoin the same way you structure the code.
• Callback handling: the script must listen for CoinPayments’ IPN (or equivalent) and update order records reliably, even if the customer closes the browser.
• Security: signed requests, proper key storage in env vars, and input validation are a must.
• Final hand-off: commented PHP files, SQL snippet for any new tables/fields, and a brief README outlining how to reproduce your test flow.
If you’ve wired CoinPayments into PHP before, this should be a quick, tidy project. Let me know your estimated turnaround and any clarifying questions, and we can get started right away.
You’ll be working with a clean PHP/MySQL codebase (no framework overhead). I already hold the CoinPayments merchant keys and have a sandbox account ready, so you can jump straight into coding.
Key points
• Core requirement: implement the CoinPayments API so payments flow smoothly from the front end to confirmed status in our database.
• Cryptos: at minimum Bitcoin, with the flexibility to add Ethereum and Litecoin the same way you structure the code.
• Callback handling: the script must listen for CoinPayments’ IPN (or equivalent) and update order records reliably, even if the customer closes the browser.
• Security: signed requests, proper key storage in env vars, and input validation are a must.
• Final hand-off: commented PHP files, SQL snippet for any new tables/fields, and a brief README outlining how to reproduce your test flow.
If you’ve wired CoinPayments into PHP before, this should be a quick, tidy project. Let me know your estimated turnaround and any clarifying questions, and we can get started right away.